The invention provides a vibration damper. The vibration damper comprises a movable rod, a cylinder barrel and energy-consuming elements, wherein the movable rod is slidably arranged inside the cylinder barrel in a sleeving manner; first grooves are formed in the outer wall of the movable rod; second grooves are formed in the inner wall of the cylinder barrel; the first grooves and the second grooves correspond to each other in position and define cavities; the side walls of the first grooves are arc-shaped; and the energy-consuming elements are embedded in the cavities and are matched with the cavities. In the vibration damper, the first grooves of which the side walls are arc-shaped are formed in the outer wall of the movable rod, the second grooves corresponding to the first grooves in position are formed in the inner wall of the cylinder barrel, the second grooves and the first grooves define the cavities, and the energy-consuming elements are embedded in the cavities and are matched with the cavities, so that when the movable rod and the cylinder barrel mutually move in a staggered manner, the energy-consuming elements are sheared while being squeezed, and the energy dissipation capacity of the energy-consuming elements is greatly improved.